CN100358331C - Sheet feed type scanner having multiline video signal correction function - Google Patents
Sheet feed type scanner having multiline video signal correction function Download PDFInfo
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- CN100358331C CN100358331C CNB200410024660XA CN200410024660A CN100358331C CN 100358331 C CN100358331 C CN 100358331C CN B200410024660X A CNB200410024660X A CN B200410024660XA CN 200410024660 A CN200410024660 A CN 200410024660A CN 100358331 C CN100358331 C CN 100358331C
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- speculum
- paper feeding
- image correction
- correction function
- scanner
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Abstract
The present invention provides a paper feeding scanner with the function of correcting multiline type image signals. A scanning module is used for scanning files fed by a paper feeding mechanism through a scanning zone and correcting pieces position in the scanning zone. The scanning module comprises an image sensor, a lens and at least one reflector. The reflector is driven by an actuator, the image sensor penetrates through the lens and the reflector to sense a plurality of scanning lines of the correcting pieces, which are used as an image signal correcting reference to correct image signals obtained by subsequently sensing the file, and adverse effect caused by defacing the correcting pieces is avoided.
Description
Technical field
The invention relates to a kind of paper feeding scanner of tool multiple wire system image correction function, especially can scan multi-strip scanning line on the correcting sheet with paper feeding scanner as the image correction foundation about a kind of.
Background technology
General scanner need scan a kind of correcting sheet with standard color (for example standard white, standard black etc.) before scanning document, with as being used for the foundation of signal of video signal of correct scan file gained.
In traditional paper feeding scanner, actionless scan module is to be used for scanning being subjected to the file that paper feed mechanism is presented, and is used for scanning actionless correcting sheet.Therefore, during scan module scanning correcting sheet, the data that only can obtain a scan line is with the correction foundation as follow up scan.When correcting sheet has when stained, the data of single scanning line may have great error, and is very big to follow up scan result's influence.
Therefore, how to provide a kind of can scan on the correcting sheet the multi-strip scanning line with as image correction according to and do not make the paper feeding scanner of the image distortion after the correction, real is problem to be solved by this invention.
Summary of the invention
An object of the present invention is to provide a kind of paper feeding scanner of tool multiple wire system image correction function, the speculum that it utilizes in the rotary scanning module slightly, the multi-strip scanning line that scans correcting sheet is with as the image correction foundation.
For reaching above-mentioned purpose, the invention provides a kind of paper feeding scanner of tool multiple wire system image correction function, it comprises scanner housing, paper feed mechanism, first scan module, first actuator and first correcting sheet.Paper feed mechanism is to be used for feed documents to pass through scanning area.First scan module is to be fixed in the scanner housing, is used for scanning the front face of document by scanning area.First scan module comprises first image sensor, first lens and first speculum.First actuator is to be used for driving this first speculum.First correcting sheet is to be fixed in the scanner housing and to be arranged in scanning area.Drive this first speculum by first actuator, make first image sensor several scan lines, to come first signal of video signal of subsequent sense front face of document gained is proofreaied and correct as the first image correction benchmark through first lens and this first speculum sensing, first correcting sheet.
In above-mentioned paper feeding scanner, can utilize the modes such as characteristic of cam, piezoelectric or bimetallic material to drive speculum and rotate, so as to the multi-strip scanning line of scanning correcting sheet with as the image correction foundation.
Description of drawings
Fig. 1 shows the paper feeding scanner according to first embodiment of the invention;
First state of the scan module of Fig. 2 displayed map 1;
Second state of the scan module of Fig. 3 displayed map 1;
Fig. 4 shows first side view of the state corresponding to first kind of actuating structure of the speculum of Fig. 2;
Fig. 5 shows second side view of the state corresponding to first kind of actuating structure of the speculum of Fig. 3;
Fig. 6 shows the vertical view corresponding to first kind of actuating structure of the speculum of Fig. 4;
Fig. 7 shows second kind of actuating structure of speculum;
Fig. 8 shows the third actuating structure of speculum;
Fig. 9 shows the paper feeding scanner according to second embodiment of the invention.
Embodiment
Below with reference to the description of drawings embodiments of the invention.
Fig. 1 shows the paper feeding scanner according to first embodiment of the invention, and Fig. 2 and 3 is first and second state of the scan module of displayed map 1 respectively.As shown in Figure 1 to Figure 3, the paper feeding scanner 1 of a kind of tool multiple wire system image correction function of the present invention is a kind of two-sided paper feeding scanner, front and reverse side that can scanning document.Yet in fact, notion of the present invention also may be implemented in the single face paper feeding scanner.
In addition, two-sided paper feeding scanner 1 more comprises second scan module 70, second actuator 80 and second correcting sheet 66, and the action and function of these members all is similar to first scan module 40, first actuator 50 and first correcting sheet 60.Second scan module 70 is to be fixed in the scanner housing 10 and relative with first scan module 40, is used for scanning the back side PB by the file P of scanning area 22.Second scan module 70 that is similar to first scan module 40 comprises second image sensor 71, second lens 72, several second speculum 73A to 73C and secondary light source 74.Second actuator 80 is to be used for driving the second speculum 73A.Second correcting sheet 66 is to be fixed in the scanner housing 10 and to be arranged in scanning area 22.Drive the second speculum 73A by second actuator 80, make second image sensor 71 see through several scan lines of second lens 72 and second speculum 73A to the 73C sensing, second correcting sheet 66, second signal of video signal of the back side PB gained of subsequent sense file P is proofreaied and correct coming as the second image correction benchmark.Image sensor 41 and 71 can be Charged Coupled Device (CCD).
In the accompanying drawings, the first shown correcting sheet 60 is a tabular.Yet in other embodiments, first correcting sheet 60 also can be arcuation, so as to reducing among Fig. 3 the optical path difference corresponding to scan line L1 and L2, so as to obtaining preferable calibration result.In the above-described embodiments,, just can reach effect of the present invention, and the configuration of speculum and number also are not limited to the state shown in the figure as long as the one at least of these speculums is rotated.Because the rotation of speculum is quite responsive for the optical path change amount, can reach effect of the present invention so the low-angle of speculum rotates.Preferably make rotating speculum as far as possible near correcting sheet, so that the allowing that amount of spin can strengthen and be convenient to and implement of speculum.The example of actuator below is described.
Fig. 4 and Fig. 5 show first and second side view of the state corresponding to first kind of actuating structure of the speculum of Fig. 2, and Fig. 6 shows the vertical view corresponding to first kind of actuating structure of the speculum of Fig. 4.To shown in Figure 6, first actuator 50 comprises for example motor 51 and cam 52 as Fig. 4, and it is driven by motor 51 and drive the first speculum 43A and rotate.The first speculum 43A is seated on the pedestal 35, and pedestal 35 can be the some that belongs to the housing of the scanner housing 10 or first scan module 40.Pedestal 35 has two protuberance 35A contact the first speculum 43A with 35B lower surface 43A1.The upper surface 43A2 of 31 couples first speculum 43A of elastic parts is toward pedestal 35 pressurizations.Elastic parts 31 is elastic arms, and the one end is fixed to pedestal 35 by bolt 32.Elastic arm has a projection 31A, and it corresponds between the two protuberance 35A and 35B of pedestal 35, so as to fixing the first speculum 43A jointly.When desire drove first speculum 43A rotation, first actuator 50 was to be used for the side of the first speculum 43A is up pushed away, so that a wherein protuberance 35B of the lower surface 43A1 of the first speculum 43A and pedestal 35 disengaging, so as to rotating the first speculum 43A.
It should be noted that the accurate positioning and stability of the first speculum 43A when promoting scanning document, do not drive as yet before the first speculum 43A rotates that first actuator 50 does not contact the first speculum 43A at first actuator 50.Therefore, the reference position of the first speculum 43A during first scan module, 40 scanning documents is that two protuberance 35A and the 35B with pedestal 35 is reference, and can not be subjected to the influence of cam 52, so can be adjusted to the optimum position when the assembling of scan module.
Fig. 7 shows second kind of actuating structure of speculum.As shown in Figure 7, first actuator 50 is made by a piezoelectric, by piezoelectric being imposed a voltage, makes piezoelectric material deforms and drives the first speculum 43A and rotate.
Fig. 8 shows the third actuating structure of speculum.As shown in Figure 8, first actuator 50 is made by a bimetallic material, by bimetallic material being imposed a voltage, makes bimetallic material distortion and drives the first speculum 43A and rotate.
Fig. 9 shows the paper feeding scanner according to second embodiment of the invention.As shown in Figure 9, the paper feeding scanner 2 of present embodiment is the paper feeding scanner 1 that is similar to first embodiment, difference is that second scan module 90 of present embodiment is to be installed in movably in the scanner housing 10 and relative with first scan module 40, so as to the function of platform-type scanning and paper feed type scanning is provided.Because second scan module 90 is removable,, can the multi-strip scanning line on second correcting sheet 66 be scanned so do not need and to rotate corresponding to the speculum of second scan module.When paper feeding scanner scanned, second scan module 90 was the back side PB that are used for scanning by the file P of scanning area 22.Same, second scan module 90 comprises second image sensor 91, second lens 92, several second speculum 93A to 93C and secondary light source 94.
By the above embodiment of the present invention, can implement a kind of paper feeding scanner of tool multiple wire system image correction function.Utilize cam, piezoelectric, bimetallic material to wait the minor rotation of reaching speculum, can effectively increase the number of scan module, avoid because the problem of the stained correction result error that causes of correcting sheet to the scan line that correcting sheet scanned.
The specific embodiment that is proposed in the detailed description of preferred embodiment only is used for making things convenient for explanation technology contents of the present invention, but not with narrow sense of the present invention be limited in the foregoing description, in the situation that does not exceed spirit of the present invention and following claims scope, the many variations of being done all belongs to scope of the present invention.
The explanation of assembly conventional letter
L1, L2 ~ scan line
P ~ file
PA ~ front
PB ~ back side
1 ~ paper feeding scanner
2 ~ paper feeding scanner
10 ~ scanner housing
12 ~ feeding box
14 ~ paper output box
20 ~ paper feed mechanism
22 ~ scanning area
31 ~ elastic parts
31A ~ projection
32 ~ bolt
35 ~ pedestal
35A, 35B ~ protuberance
40 ~ the first scan modules
41 ~ the first image sensors
42 ~ the first lens
43A-43C ~ first speculum
43A1 ~ lower surface
43A2 ~ upper surface
44 ~ the first light sources
50 ~ the first actuators
51 ~ motor
52 ~ cam
60 ~ the first correcting sheets
66 ~ the second correcting sheets
70 ~ the second scan modules
71 ~ the second image sensors
72 ~ the second lens
73A-73C ~ second speculum
74 ~ secondary light source
80 ~ the second actuators
90 ~ the second scan modules
91 ~ the second image sensors
92 ~ the second lens
93A-93C ~ second speculum
94 ~ secondary light source
Claims (14)
1. the paper feeding scanner of a tool multiple wire system image correction function is characterized in that, comprises:
Scanner housing;
Paper feed mechanism, being used for feed documents passes through scanning area;
First scan module is fixed in the described scanner housing, is used for scanning the described front face of document by described scanning area, and described first scan module comprises first image sensor, first lens and first speculum;
First actuator is used for driving described first speculum; And
First correcting sheet, be fixed in the described scanner housing and be arranged in described scanning area, wherein drive described first speculum by described first actuator, make described first image sensor see through several scan lines of described first lens and described first correcting sheet of the described first speculum sensing, first signal of video signal of the described front gained of the described file of subsequent sense is proofreaied and correct coming as the first image correction benchmark.
2. the paper feeding scanner of tool multiple wire system image correction function as claimed in claim 1 is characterized in that, described first correcting sheet is a tabular.
3. the paper feeding scanner of tool multiple wire system image correction function as claimed in claim 1 is characterized in that, described first correcting sheet is an arcuation.
4. the paper feeding scanner of tool multiple wire system image correction function as claimed in claim 1 is characterized in that, described first actuator comprises:
Power source; And
Cam is subjected to described drive power source and drives described first speculum to rotate.
5. the paper feeding scanner of tool multiple wire system image correction function as claimed in claim 4 is characterized in that described power source is a motor.
6. the paper feeding scanner of tool multiple wire system image correction function as claimed in claim 1, it is characterized in that, described first actuator is made by a piezoelectric, by described piezoelectric is imposed a voltage, makes described piezoelectric material deforms and drives described first speculum and rotate.
7. the paper feeding scanner of tool multiple wire system image correction function as claimed in claim 1, it is characterized in that, described first actuator is made by a bimetallic material, by described bimetallic material is imposed a voltage, make the distortion of described bimetallic material and drive described first speculum and rotate.
8. the paper feeding scanner of tool multiple wire system image correction function as claimed in claim 1 is characterized in that, described first scan module more comprises first light source, is used for shining the described front and described first correcting sheet of described file.
9. the paper feeding scanner of tool multiple wire system image correction function as claimed in claim 1, it is characterized in that, described first speculum is to be seated on the pedestal, described pedestal has the lower surface that two protuberances contact described first speculum, and elastic parts is to the past described pedestal pressurization of the upper surface of described first speculum, when desire drives described first speculum and rotates, described first actuator is to be used for a side of described first speculum is up pushed away, so that described first speculum the lower surface and the wherein protuberance of described pedestal break away from, so as to rotating described first speculum.
10. the paper feeding scanner of tool multiple wire system image correction function as claimed in claim 9, it is characterized in that described elastic parts is an elastic arm, the one end is fixed to described pedestal, described elastic arm has projection, and it corresponds between described two protuberances of described pedestal.
11. the paper feeding scanner of tool multiple wire system image correction function as claimed in claim 9 is characterized in that, before described first actuator did not drive described first speculum rotation as yet, described first actuator did not contact described first speculum.
12. the paper feeding scanner of tool multiple wire system image correction function as claimed in claim 1 is characterized in that, more comprises:
Second scan module, it is interior and relative with described first scan module to be fixed on described scanner housing, be used for scanning the described back face of document by described scanning area, described second scan module comprises second image sensor, second lens, second speculum and secondary light source;
Second actuator is used for driving described second speculum; And
Second correcting sheet, be fixed in the described scanner housing and be arranged in described scanning area, wherein drive described second speculum by described second actuator, make described second image sensor see through several scan lines of described second lens and described second correcting sheet of the described second speculum sensing, second signal of video signal of the described back side gained of the described file of subsequent sense is proofreaied and correct coming as the second image correction benchmark.
13. the paper feeding scanner of tool multiple wire system image correction function as claimed in claim 1 is characterized in that, more comprises:
Second scan module, it is interior and relative with described first scan module to be installed in described scanner housing movably, is used for scanning the described back face of document by described scanning area.
14. the paper feeding scanner of tool multiple wire system image correction function as claimed in claim 13 is characterized in that, described second scan module comprises second image sensor, second lens, second speculum and secondary light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410024660XA CN100358331C (en) | 2004-05-26 | 2004-05-26 | Sheet feed type scanner having multiline video signal correction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410024660XA CN100358331C (en) | 2004-05-26 | 2004-05-26 | Sheet feed type scanner having multiline video signal correction function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1705338A CN1705338A (en) | 2005-12-07 |
| CN100358331C true CN100358331C (en) | 2007-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410024660XA Expired - Fee Related CN100358331C (en) | 2004-05-26 | 2004-05-26 | Sheet feed type scanner having multiline video signal correction function |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4871765B2 (en) | 2007-03-14 | 2012-02-08 | 株式会社Ｐｆｕ | Scanner, image processing method, and image processing apparatus |
| CN107437295B (en) * | 2016-05-26 | 2020-08-21 | 山东新北洋信息技术股份有限公司 | Method and device for correcting scanning module of paper money processing device |
| TWM550002U (en) | 2017-06-29 | 2017-10-01 | 虹光精密工業股份有限公司 | Two-sided scanning device having brightness calibration components and scanning background components and office machine therewith |
| CN111567025B (en) * | 2018-01-31 | 2022-06-17 | 惠普发展公司，有限责任合伙企业 | Rotatable scanner image sensor in sealed housing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2354184Y (en) * | 1998-11-23 | 1999-12-15 | 鸿友科技股份有限公司 | Optical scanning model assembly |
| JP2002040357A (en) * | 2000-07-31 | 2002-02-06 | Hitachi Via Mechanics Ltd | Control device for optical scanner |
| CN1474346A (en) * | 2002-08-06 | 2004-02-11 | 虹光精密工业（苏州）有限公司 | Optical module corrector of paper feeding scanner |
-
2004
- 2004-05-26 CN CNB200410024660XA patent/CN100358331C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2354184Y (en) * | 1998-11-23 | 1999-12-15 | 鸿友科技股份有限公司 | Optical scanning model assembly |
| JP2002040357A (en) * | 2000-07-31 | 2002-02-06 | Hitachi Via Mechanics Ltd | Control device for optical scanner |
| CN1474346A (en) * | 2002-08-06 | 2004-02-11 | 虹光精密工业（苏州）有限公司 | Optical module corrector of paper feeding scanner |
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| Publication number | Publication date |
|---|---|
| CN1705338A (en) | 2005-12-07 |
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